Feed-water-heating system.



C. CAILLE.

FEED WATER HEATING SYSTEM.

APPHCATION FILED SEPT-1,1915.

Patented June 20, 1916.

3 mm Chaffies a/#6 CHARLES CAILLE, or LE rnnnnox, FRANCE, ASSIGNOR r0 L. HUFFER & cm, or

' PARIS, FRANCE.

FEED-WATER-HEATING SYSTEM.

Specification of Letters Patent.

Patented June 20, 1916.

To all whom it may concern:

Be it known that I, CHARLES CAILLE, citizen of the Republic of France, residing at Le Perreux, France, have invented new and useful Improvements in Feed-Vater-Heating Systems, of which the following is a specification.

The present invention has for its object to provide an improved construction to accomplish the heating of the feed water of steam generators of any kind whatever by means of the direct mixture of the feed water with a part of the exhaust steam of the engines operated from the said steam generators.

The apparatus used to effect this end is arranged as shown, partly in section and partly in elevation, in the accompany ng drawing, and consists of a tank a which may be a reservoir, tender, or any other source of supply containing the feed water which communicates by means of a pipe 6 and a double branch pipe 0 with two receivers (Z and 6. These two receivers are alike and are subject to the head of the water in the tank. They communicate at their upper ends through a branch pipe f and a pipe 9 with an apparatus h for mixing the water with the exhaust steam of the 1 engine. The pipe 9 which extends above the maximum level of the water in the tank a opens into a tube 2' which communicates with a settling tank j.

The feed water pump is, of which the steam cylinder is indicated by w, is arranged slightly below the settling chamber j, and receives the hot water from the latter under a slight head through a pipe at, leading from the bottom of the tank J to the pump. This pump is intended to work with water at a high temperature and is preferably of the special type described in my United States Patent No. 930,6 16 dated August 10th, 1909.

The apparatus for mixing the water with the exhaust steam is a mixing tube consisting of a casing or chamber in in the interior of which is arranged a tube 2', formed with a large number of small holes a for the passage of the exhaust steam from the engine. The exhaust steam passes from the main exhaust pipe of the engine through the pipe 9 to an oil extractor p of known construction and then through the pipe 0 to the chamber h.

Each of the receivers (Z and e is in communication with the interior of the steam cylinder to of the pump 70, the receiver d by means of a small pipe r with one end, while the other receiverc communicates by means of a pipe .9 with the other end of the steam cylinder w. The result of this arrangement is that when all the connections are established and the pump is working, at each descending stroke of the pump piston the receiver cl receives high pressure steam, while at each ascending stroke the same re ceiver (Z is in connection with the exhaust of the steam cylinder; at each ascending stroke the water from the tank a raises the clack "alve t and enters the receiver (Z and at each descending stroke this water, subjected to the same steam pressure as the piston of the pump w, 7?, is forced through the tube a and the clack valve o into the pipe 9, which can be made any length desirable. The water enters with a considerable velocity into the perforated tube 2', thereby aspiring a part of the exhaust steam of the main engine from the chamber it through the role n. From the perforated tube 5 the mixture of hot water and condensed steam enters the settling tank and reaches the water cylinder of the pump through the pipe m. From the pump is this hot water is forced into the boiler through the delivery pipe at.

Alternating with the series of operations taking place in the receiver (Z, the same series of operations occur in the receiver a. Each of the two receivers (Z and 0, thus receives water, and delivers the same alternately into the appantus h, z, for mixing the water and steam, and effects this in synchronous concordance with the suction and delivery strokes of the feed pump w, 70.

I claim:

1. In a feed water heater the combination of a tank in communication with two receivers, each of said receivers being provided with suction and delivery valves; a feed pump supplied through said receivers; means of communication between one of said receivers and one end of the steam cylinder of said feed pump; and means of communication between the other receiver and the other end of said steam cylinder.

2. In a feed water heater the combination of a tank in communication with two receivers, each of said receivers being pro cylinder.

vided with suction and delivery valves; a

mixing tube in communication with the outlets of said receivers; means for delivering exhaust steam to said mixing tube; a feed pump supplied through said receivers and mixing tube; means of communication between one of said receivers and one end of the steam cylinder of said feed pump; and means of communication between the other receiver and the other end of said steam 8. In a feed Water heater the combination of a tank in communication with two receivers, each of said receivers being provided with suction and delivery valves; a mixing tube in communication with the out lets of said receivers; means for delivering CHARLES CAILLE.

Witnesses HENRI NoNiN, CHAS. P. PRESSLY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents;

' Washington, .D. C." 

